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Extent of the Jam

@extentofthejam.bsky.social
1.1K followers 780 following 10K posts

Ornery middle-aged coder and musician (funk, chiptunes). Author of Digits VST and Slam VST. ADHD and Jewish. Battling nerve damage from transverse myelitis. Sick of your shit. Married. East Bay. #demoscene #retrogaming #shmups 🏳️‍🌈

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Extent of the Jam @extentofthejam.bsky.social · 3h
Ooh there’s a movie one. I’m going with these
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Extent of the Jam @extentofthejam.bsky.social · 17h
Aliens took a ton from Them!, didn’t it
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Extent of the Jam @extentofthejam.bsky.social · 17h
Anyone else remember those 1980s VHS movie transfers of older films that were all really bad? Blurry, sometimes in the wrong aspect ratio, sometimes colorized. There were old movies I saw on VHS that I disliked, and then when I watched them later on DVD widescreen it changed my opinion of them.
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Extent of the Jam @extentofthejam.bsky.social · 29/09/2026
These are fantastic
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Extent of the Jam @extentofthejam.bsky.social · 28/09/2026
Misturrrr andursonnnnn
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Extent of the Jam @extentofthejam.bsky.social · 28/09/2026
Anyone remember the Hale-Bopp end of the world cult?
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Extent of the Jam @extentofthejam.bsky.social · 28/09/2026
Happy #ScanlineSunday. I enjoy Impossible Mission 3’s title screen homage to Rolling Thunder. The scientists are pulling out what is left of their hair and when you hit start, your sunglassed hero runs in. Awesome. Very nice pixel art as well. Have a couple logos, too.
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Jason Moore @moorejh.bsky.social · 28/09/2026
#apple2
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Extent of the Jam @extentofthejam.bsky.social · 28/09/2026
Drop some artwork (from a movie I take it)
Dorian Gray 1945
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Extent of the Jam @extentofthejam.bsky.social · 27/09/2026
Sega Turing Machine Championship
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Extent of the Jam @extentofthejam.bsky.social · 27/09/2026
Gotta be Smooth Criminal from Moonwalker youtu.be/h_D3VFfhvs4?...
youtu.be
Michael Jackson - Smooth Criminal (Official Video)
YouTube video by michaeljacksonVEVO
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Extent of the Jam @extentofthejam.bsky.social · 27/09/2026
Before Super Sprint, there was a series of mostly black and white Sprint games. The 2 in this refers to the number of players. They had this at Musee Mechanique and it was very difficult to shift at the same time you’re frantically spinning the wheel to make those corners. Fun stuff though.
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GIFS GALORE @gifs-bot.bsky.social · 27/09/2026
CARTOON/HOBBES2.GIF
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Extent of the Jam @extentofthejam.bsky.social · 27/09/2026
Ok, Impossible Mission III is the same map each time, it’s only the items which are shuffled. This is both good and bad. The good is it means you can route it. The bad is one of the best parts of the original was it changed up the behavior of every robot and shuffled every room between plays…
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Extent of the Jam @extentofthejam.bsky.social · 26/09/2026
It’s possible that free will is an illusion and that we are all just a bag of neurons doing neuron things. Tbh it doesn’t really change anything.
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Extent of the Jam @extentofthejam.bsky.social · 26/09/2026
Did you know Electrocop was originally going to be a 3d Impossible Mission? I know that one had shortcomings like the camera, but it’s one I keep meaning to spend more time with
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Extent of the Jam @extentofthejam.bsky.social · 26/09/2026
Impossible Mission 3 necessitates a lot of backtracking because of all the keys and other basically-keys items and has a propensity for layouts with tons of tiny elevator shafts. Maybe if it had an occasional teleport or was divided into smaller sections you solve it’d be much improved.
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Extent of the Jam @extentofthejam.bsky.social · 26/09/2026
Today’s #RandomGameSaturday is Koronis Rift, a LucasArts game about being an intergalactic scavenger. I’ve never really gotten into this one but it looks neat. It’s the last game to use their (quite astounding) realtime fractal 3d graphics engine (which has a Star Trek II special fx connection)
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Extent of the Jam @extentofthejam.bsky.social · 26/09/2026
Loading Impossible Mission 3
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Extent of the Jam @extentofthejam.bsky.social · 25/09/2026
The only drink I allow in interviews is an enormous slurpee.
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Extent of the Jam @extentofthejam.bsky.social · 25/09/2026
I learned today that there are people who play Impossible Mission and wait until they have *all* the pieces to even touch the puzzles. That’s restraint. Also this version is messed up, even past the “actually impossible” part.
Atari 7800 screwing up Impossible Mission.
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Extent of the Jam @extentofthejam.bsky.social · 25/09/2026
I wonder if Psycho Fox influenced Sonic at all. They’re both momentum-y with splitting levels
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台羽正 @tadashidaiba.bsky.social · 24/09/2026
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SEGA City @segacity.bsky.social · 24/09/2026
Hen House 'Road Avenger' SEGA Mega CD
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Sasha's Retrobytes 🏳️‍⚧️ @sharkabytes.bsky.social · 24/09/2026
Swooping along the hyperspace psi-ways: PSYBORG from French developer Loriciel in 1992 (Atari ST version) While it follows in the footsteps of race-to-the-finish-and-avoid-obstacles Trailblazer and Cosmic Causeway, it was Sky Roads and Rollcage that came to mind the most while trying this out.
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Extent of the Jam @extentofthejam.bsky.social · 24/09/2026
👀 Great game that I’ve blundered through due to not being able to read anything. If you like Black Tiger, this is better.
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Chronic Illness Humor @chronicillness.bsky.social · 24/09/2026
xbox achievement unlocked - traumatizing a med student
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Alice Averlong 🏳️‍⚧️ @alice.averlong.com · 23/09/2026
Happy Celebrate Bisexuality Day! Here's the bi flag, shown my DOS program VGAPride for showing pride flags, running on a Pentium-60.
A beige desktop computer and CRT monitor, showing a bisexual pride flag
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Extent of the Jam @extentofthejam.bsky.social · 23/09/2026
Garry Kitchen’s Halo
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Extent of the Jam @extentofthejam.bsky.social · 22/09/2026
Maybe this is the Sega fan in me, but I felt way back that it was a problem that generalized electronics and operating system companies were getting into the console business with no real identity or direction besides being another set top box maker.
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Metin Seven, Moon Child's dad 🌝 @seven.eurosky.social · 22/09/2026
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Extent of the Jam @extentofthejam.bsky.social · 22/09/2026
Working on my DOS game jam game I took a detour and wrote a small randomized Adlib music layer. The Adlib chip is actually really nice to program for, and the registers are quite musical in that it has both raw frequency and octave.
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Extent of the Jam @extentofthejam.bsky.social · 22/09/2026
This is really hard to pinpoint. I’d always had a fascination with games, but I might say Doom as the game that felt like something so new and different from computer games before it that I felt like it was more “mine” than the sort of things my dad and brother played, and which I was glued to.
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Extent of the Jam @extentofthejam.bsky.social · 22/09/2026
“Everything is possible but nothing is real”
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Extent of the Jam @extentofthejam.bsky.social · 21/09/2026
Hey #ScanlineSunday, here’s a demo effect I did on the Atari 2600 about 15 years ago. There is a second effect but I need to fix the tv timing because it rolls on this display.
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Extent of the Jam @extentofthejam.bsky.social · 20/09/2026
Autotune still sounds awful to me. I like to hear the grain and richness in a human voice, especially when they have good vibrato. I don’t want it flattened out, made nasal, or to have a signature buzz. And when autotune is maxed it just sounds like a vocoder that has zero patch variation.
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Jeremy Parish (Radio Edit) @jparish.bsky.social · 20/09/2026
A few unsourced websites list TODAY as the Master System's 40th anniversary. Even if that is not correct, I say: Happy anniversary, you weird and wonderful little system. (I still think the gridded box design is pretty striking when you see it all displayed in force.)
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Extent of the Jam @extentofthejam.bsky.social · 20/09/2026
Popping back in quickly for #RandomGameSaturday. Here's Karous, the final official Dreamcast game. Coming after Radilgy, it's another artsy cel shaded shooter, but this time it's less goofy and more gothy. Like Radilgy, I think it can also be found on that Wii Milestone shooters collection.
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Extent of the Jam @extentofthejam.bsky.social · 08/09/2026
Gonna take a couple weeks off social media. See y’all in a bit!
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Extent of the Jam @extentofthejam.bsky.social · 08/09/2026
I feel so goddamn sad about the world right now.
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Extent of the Jam @extentofthejam.bsky.social · 07/09/2026
PN04 and Cannon Spike 2
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Extent of the Jam @extentofthejam.bsky.social · 07/09/2026
Abolish sports
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Extent of the Jam @extentofthejam.bsky.social · 07/09/2026
River Raid II is underrated. Taken as its own thing it’s pretty good- a bit like Blue Max
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Extent of the Jam @extentofthejam.bsky.social · 06/09/2026
Being able to use C’s function-local static variables because you don’t have to design for more than one instance 😎
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Extent of the Jam @extentofthejam.bsky.social · 06/09/2026
Wait, there are zero pinball games for N64. I thought it’s shmups library was small (one game), but pinball is literally nonexistent on it. Even Saturn has like a dozen pins.
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Extent of the Jam @extentofthejam.bsky.social · 06/09/2026
Finding joy and happiness right now is resilience
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chiba_latte @chibalatte.bsky.social · 06/09/2026
Someone is into shmups at the local rescue
Screenshot of cat adoption page with multiple cats with shmup names (Gradius, Raiden, Twinbee, Garegga)
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Extent of the Jam @extentofthejam.bsky.social · 06/09/2026
One thing I love about the Atari 2600 is that each game design has to be boiled down to the essence, given the severe limitations of the system. And the limits are really interesting and unusual. E.g. there are reasons you tend to see objects in equally spaced triplets and things move in rows.
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Extent of the Jam @extentofthejam.bsky.social · 06/09/2026
The 21st century is nuts
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Extent of the Jam @extentofthejam.bsky.social · 06/09/2026
I loved the first game, and it was really great for two players. Very easy to get into and learn.
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